Rival gang leaks decryption keys for Chimera ransomware

Aside from the efforts of security researchers and antivirus companies, malware victims can sometimes also benefit from the fighting between rival cybercriminal groups.

That happened this week when the creators of the Petya and Mischa ransomware programs leaked about 3,500 RSA private keys allegedly corresponding to systems infected with Chimera, another ransomware application.

In a post Tuesday on Pastebin, Mischa’s developers claimed that earlier this year they got access to big parts of the development system used by Chimera’s creators.

As a result of that hack, they obtained the source code for Chimera and integrated some of it into their own ransomware project, according to the Pastebin message.